c69400硅黄铜(复杂黄铜)
product description: silicon red brass
tempers: h04 hard
solids: 3/8" to 2" o.d.
hex: 3/8" to 2" o.d.
standard lengths: 144"
typical uses
industrial: valve stems
similar***equivalent specification
cda astm sae ams federal military other
c69400 b371
b371m
chemical composition
cu％1 pb％ zn％ fe％ si％
chemical composition according to astm b371/b371m-19
1cu value includes ag.
note: cu + sum of named elements, 99.5％ min. single values represent maximums.
80.00- 3.50-
83 0.3 rem. 0.2 4.5
machinability
copper alloy uns no. machinability rating density (lb/in3 at 68 °f)
c69400 30 0.296
mechanical properties
mechanical properties according to astm b371/b371m-19
c69400
h04 hard
size range: up to 1" inclusive
tensile strength, min yield strength, at 0.5％ extension under load, min elongation, in 4x diameter***thickness of specimen, min rockwell "b" hardness remarks
ksi mpa ksi mpa ％ typical bhn
80 550 40 250 15 95
size range: over 1" to 2" inclusive
tensile strength, min yield strength, at 0.5％ extension under load, min elongation, in 4x diameter***thickness of specimen, min rockwell "b" hardness remarks
ksi mpa ksi mpa ％ typical bhn
75 515 35 241 15 95
size range: over 2"
tensile strength, min yield strength, at 0.5％ extension under load, min elongation, in 4x diameter***thickness of specimen, min rockwell "b" hardness remarks
ksi mpa ksi mpa ％ typical bhn
65 450 35 241 15 95
physical properties
physical properties provided by cda
us customary metric
melting point - liquidus 1685 °f 918 °c
melting point - solidus 1510 °f 821 °c
density 0.296 lb/in3 at 68 °f 8.19 gm/cm3 at 20 °c
specific gravity 8.19 8.19
electrical conductivity 6.2％ iacs at 68 °f 0.04 megasiemens/cm at 20 °c
thermal conductivity 15 btu/sq ft/ft hr/°f at 68 °f 25.98 w/m at 20 °c
coefficient of thermal expansion 68-572 11.2 · 10-6 per °f (68-572 °f) 19.3 · 10-6 per °c (20-300 °c)
specific heat capacity 0.09 btu/lb/°f at 68 °f 377.1 j/kg at 20 °c
modulus of elasticity in tension 16000 ksi 110310 mpa
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